Table 3.

The distribution of families with VL patients by runs test

Group number	Number of families with patient	Total households	Z-value	P-value
A1	6	20	−2.156	0.031
A2	10	24	−2.221	0.026
A3	10	28	−2.675	0.007
A4	18	45	−3.176	0.001
A6	16	37	−2.264	0.024
A7	9	23	−2.45	0.014
A8	9	20	−2.043	0.041
C1	17	64	−2.261	0.024
C2	10	46	−2.282	0.022
C7	8	26	−2.166	0.030

Note: This table only listed groups which had more than 5 families with a patient, where A, B and C denotes the 1th village, the 18^th village and 20^th village, respectively